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51 Matching Results
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51
Drill-Bit
Patent for a drill bit for oil wells that provides a way for the bit to be lubricated while in use to prevent the adhesion of gummy substances.
Date:
June 4, 1918
Creator:
Kilgore, John G.
Object Type:
Patent
System:
The Portal to Texas History
Horse-Releaser.
Patent for a horse releaser, which has multiple sections and a section can be released to free the horse from the vehicle.
Date:
February 4, 1908
Creator:
White, Alton
Object Type:
Patent
System:
The Portal to Texas History
Agricultural Implement.
Patent for an agricultural implement related to ground treating. The implement introduces a novel mounting for a colter that will keep it in line with the draft beam, as well as aids in holding the soil-turning elements in place.
Date:
November 4, 1913
Creator:
Vanderwater, Daniel B.
Object Type:
Patent
System:
The Portal to Texas History